Metal-cleaning compound



Patented July 7, 1925.

UNITED STATES MEDERIC VIGEANT, OE BROOKLINE, MASSACHUSETTS.

METAL-CLEANING COMPOUND.

No Drawing.

To all whom it may concern:

Be it known that I, Miimimo VIGEANT; a citizen of Brookline, in the county of Suffolk and State of Massachusetts, have invented a new and useful Metal-Cleaning Compound, of

which the following is a specification.

This invention relates to a compound for cleaning polished metal surfaces and is particularly designed for cleaning silverware.

It is the object of my invention to provide a cleaning compound which will renew and freshen tarnished silverware or other polished metal articles and which will remove spots and discolorations therefrom.

A further object is to provide a cleaning compound which will be very easy and simple to use and which will require a minimum amount of labor in connection with the use thereof.

lVith these objects in View, my invention relates particularly to a polishing compound embodying certain ingredients and proportions as hereafter set forth.

My improved metal cleaning compound consists essentially of an aqueous solution of sodium cyanide and ammonium carbonate. While capable of a considerable variation in proportions, a very satisfactory embodiment of my invention may be produced by dissolving 14 ounces of sodium cyanide and two ounces of ammonium carbonate in four gallons of water, the proportions of this solution being the United States, residing at 1& parts cyanide, two parts Application filed February 25, 1924. Serial No. 695,114.

carbonate and 128 parts water. lution, I may add a very small quantity of some aromatic substance to give the solution a pleasing odor.

To this so- The solution thus compounded maybe kept indefinitely and is used by merely dipping the tarnished silverwareor other metal articles into the cold solution, thereafter thoroughly rinsing and drying the articles. A more brilliant polish may be obtained if the articles after treatment are rubbed with metal rouge has been applied. If the article is very badly tarnished, it may be desirable to apply a silver powder or paste to the ar tic-le after treatment in the solution.

Having'thus described my invention and the advantages thereof, I do not Wish to be limited to'the details herein disclosed otherwise than as set forth in the claims, but what I claim is 7 1. A metal cleaning compound comprising a relatively small amount of ammonium MEDERIG VIGEANT.

.45 a chamois skin or a soft' cloth on whichv 

